CN106104359B - Electric wet-type display pixel structure - Google Patents
Electric wet-type display pixel structure Download PDFInfo
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- CN106104359B CN106104359B CN201580015555.6A CN201580015555A CN106104359B CN 106104359 B CN106104359 B CN 106104359B CN 201580015555 A CN201580015555 A CN 201580015555A CN 106104359 B CN106104359 B CN 106104359B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/004—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid
- G02B26/005—Optical devices or arrangements for the control of light using movable or deformable optical elements based on a displacement or a deformation of a fluid based on electrowetting
Abstract
Presently disclosed subject matter is about the effective voltage drop in the pixel in the Active Matrix Display for reducing such as electric moistening display apparatus.The electric moistening display apparatus includes multiple pixel regions, wherein each pixel region includes: hydrophobic surface;First fluid and second fluid on the hydrophobic surface, wherein the first fluid can not be mixed with the second fluid;And the pixel electrode below the hydrophobic surface, wherein the pixel electrode has general U-shape.Thin film transistor (TFT) is coupled to the pixel electrode and voltage source.The hydrophobic surface is caused to become more hydrophobic by the voltage that the pixel electrode is applied to the hydrophobic surface via the thin film transistor (TFT) and the voltage source, to which the second fluid to be moved on the hydrophobic surface, thus the first fluid generally on hydrophobic surface described in displacement.
Description
Cross reference to related applications
It is described this application claims the priority for the U.S. Patent Application No. 14/224,989 submitted on March 25th, 2014
The full content of U.S. Patent application is incorporated herein by reference.
Background
Many portable electronic devices include the display for showing various types image.The example packet of this display
Include that electric wet-type display (EWD), liquid crystal display (LCD), electrophoretic display device (EPD) (EPD), (LED is shown light emitting diode indicator
Device) etc..In electric wet-type display, the resistance of the electrolyte in fluid in pixel region reduces effective electricity of pixel region
Pressure.Fig. 1 diagram is expressed as simplifying the pixel region 100 of circuit.As can be seen, pixel region 100 can be expressed as including voltage source
102, thin film transistor (TFT) (TFT) 104, storage capacitance Cs106, the capacitor C of pixel electrode areaew108 and indicate electrolyte
The R of resistanceEGG。
Following equation 1 illustrates the relationship for influencing the parameter of the voltage drop in pixel region 100, when wherein t line is line
Between, VOutputEqual to VSourceSubtract Vkb, wherein VkbIt is the drop of leaping voltage present in all Active Matrix Displays.As previously alluded
Out, CewIt is pixel capacitance related with pixel electrode area, and CsIt is the storage capacitance of pixel region.
In conventional electric wet-type display, pixel electrode is the flat layer below pixel region, and is therefore had larger
Area.Therefore, REGGCan be relatively large, such as it is up to 300 megaohms.Thus, due to REGGVoltage drop may be obvious
, therefore greatly affect the effective voltage of pixel region.
Brief description
Detailed description is described with reference to the non-limiting and non exhaustive embodiment illustrated in attached drawing.In different attached drawings
Same reference numerals refer to project similar or identical.
Fig. 1 is the schematic diagram for being expressed as simplifying the pixel region of the electric wet-type display of circuit.
Fig. 2A is the schematic diagram according to the example of the electric moistening display apparatus of various embodiments.
Fig. 2 B is the cross-sectional view according to a part of the electric moistening device of Fig. 2A of some embodiments
Fig. 2 C is regarded according to the amplification of the pixel region of the electric moistening display apparatus of Fig. 2A and Fig. 2 B of various embodiments
Figure.
Fig. 3 illustrates the essence of the exemplary image display device that may include electric wet-type display according to various embodiments
Select component.
It is described in detail
It summarizes
The disclosure provides the reduced framework and technology that effective voltage drop is realized in the pixel in Active Matrix Display.
In general, the image display such as various electronic devices shows image over the display, it is described various
Electronic device includes but is not limited to: portable computing, tablet computer, laptop computer, notebook computer, movement
Phone, personal digital assistant (PDA) and attachment device for displaying audio (for example, electronic book device, DVD player etc.).The display
The example of device includes but is not limited to LCD, EWD and EPD
More specifically, the display device of such as electric moistening display apparatus is for instance it can be possible that the wet display of thin film transistor (TFT) electricity
Device (TFT-EWD), the display generally include the transmission-type for being configured for being operated by active array addressing scheme
Or the array of reflective pixel.For example, operating the row of pixel by controlling the voltage level on multiple source electrode lines and grid line
And column.In this way, display device can be transmitted, be reflected by selection specific pixel or light is stopped to generate image.Through
Row and column including the transistor (for example, being used as switch) in each pixel is connected to pixel by source electrode line and grid line
It is addressed (for example, selection).Transistor occupies the relatively small part of each pixel region.For example, being shown in reflection-type
In device, transistor can be positioned on the lower section of reflector.
Electrically, pixel is with one layer of insulation light being clipped between transparent electroconductive indium tin oxide (ITO) layer
Learn the small capacitor of material (for example, liquid crystal material or electric wetted material).The unidirectional current transmission characteristic of the transistor of pixel is anti-
The charge for being only applied to pixel leaks between the refresh cycle of display image.
Electric wet-type display changes surface tension of the liquid relative to surface using the voltage applied.For example, lead to
It crosses and applies voltages to hydrophobic surface using pixel electrode and common electrode, the wetting properties on the surface can be modified, with
So that the surface becomes gradually hydrophilic.Hydrophobicity typicallys represent repelling fluid, and hydrophily typically represent have to fluid it is affine
Power.As an example of electric wet-type display, cause the respective pixel of display by applying voltage to modify surface tension
In liquid in electrolyte be adsorbed onto the surface being upgraded, and therefore replace display respective pixel in colored electrodeposition it is wet
Moisten oil reservoir.Therefore, the electricity changed in response to surface tension in the respective pixel of display moistens fluid and serves as optical switch.When
There is no when voltage, the wet oil of colored electrodeposition forms continuous film, and the use that color can therefore for display in pixel
Person is visible.On the other hand, when applying voltages to pixel, coloured oil is by displacement (displace), and pixel becomes transparent.
When independently activating multiple pixels of display, color or gray level image can be presented in the display.Pixel may make up transmission
The basis of type, reflection-type or transmission-type/reflection-type (transflective) display.In addition, pixel may be in response to high switching speed
(for example, about several milliseconds), while using small pixel size.Therefore, the electric wet-type display of this paper is suitably adapted for such as showing
Show that video content etc. is applied.In addition to this, the low power consumption of electric wet-type display generally make the technology be suitable for according to
Rely and shows content on the portable display apparatus of battery supply.
Each pixel of electric wet-type display includes the pixel electrode below the liquid in pixel.According to various implementations
Scheme, pixel electrode have general U-shape.In other words, pixel electrode has the beginning.Because big in electric wet-type display
Most pixels are generally rectangularly-shaped, and for example, about 120 microns × 60 microns, so pixel electrode is generally rectangular U-shaped shape
The pixel electrode of shape, beginning are positioned close to the top section of pixel.
Illustrative structures and process
With reference to Fig. 2A, in this example it is schematically indicated that the example of electric moistening display apparatus 200 comprising timing controller 202, data
Driver 204, scanner driver 206, voltage generator 208 and Electrowetting display panel 210.Electrowetting display panel 210 by
Timing controller 202, data driver 204, scanner driver 206 and voltage generator 208 drive.
The example of general operation as electric moistening display apparatus 200, in response to (not scheming from such as graphics controller
Show) etc. external sources the first data-signal DG1 and first control signal C1, timing controller 202 by the second data-signal DG2 and
Second control signal C2 is applied to data driver 204;Third control signal C3 is applied to scanner driver 206;And it will
4th control signal C4 is applied to voltage generator 208.
Second data-signal DG2 is converted into voltage, i.e. data-signal by data driver 204, and by data-signal
Dl ..., Dp-1, Dp, Dp+l ..., Dm is applied to Electrowetting display panel 210.Scanner driver 206 is controlled in response to third
Signal C3, by scanning signal S1 ..., Sq-l, Sq ..., Sn are continuously applied to Electrowetting display panel 210.
Shared voltage Vcom is applied to Electrowetting display panel in response to the 4th control signal C4 by voltage generator 208
210.Although not shown in Fig. 2A, voltage generator 208 generates timing controller 202, data driver 204 and scanning and drives
Various voltages required for dynamic device 206.
Electrowetting display panel 210 includes m data line DL, i.e. source electrode line, is used for transmission data voltage;And n grid
Polar curve SL, i.e. scan line are used for transmission grid-connection signal.
Pixel region 212 is positioned close to the intersection point of data line DL and grid line SL, the grid line SL and data line DL
Intersection.Each pixel region 212 is by the pixel below hydrophobic surface and the hydrophobic surface including thin film transistor (TFT) 214
Electrode 216 forms, and such as will be explained in further detail herein.Dividing wall 218 defines pixel region 212.Pixel region 212 can table
Show the pixel in electric moistening display apparatus 200 or the sub-pixel in electric moistening display apparatus 200, depends on electric moistening display apparatus
200 application.
Fig. 2 B is according to the cross-sectional view of a part of the electric moistening device 200 of some embodiments, and it is generally right to show
It should be in the wet element 220 of several electricity of pixel region 212.222 shape of electrode layer including pixel electrode 216 (in Fig. 2 B not shown)
At in bottom support plate 224.In some implementations, dielectric barrier (not shown) can be at least partly by electrode layer 222
It is separated with the hydrophobic layer 226 for being located at 222 top of electrode layer being also formed in bottom support plate 224.This separation can be especially
Prevent to penetrate the electrolysis of hydrophobic layer 226.In some implementations, hydrophobic layer 226 may include fluoropolymer, all
The AF1600 such as produced by the DuPont for being located at Delaware State Wilmington city.Pixel wall 218 is formed in hydrophobic layer 226
Patterned electricity moistens element grid, can such as find out in fig. 2.Pixel wall 218 may include Other substrate materials, and such as epoxy group is negative
Property photoresist SU-8.Patterned electricity moisten element grid include to be formed area's electricity moisten element and boundary electricity moisten element electricity it is wet
Want the row and column of pixel array (for example, Electrowetting display panel 210).For example, the wet element of electricity can have at about 50 microns to 500
Width and length in micron range.There can be the first fluid 228 of the thickness for example in about 1 micron to 10 micron ranges to cover
It is placed on above hydrophobic layer 226.First fluid 228 is usually the wet oil of electricity, and the pixel of element grid is moistened by patterned electricity
Wall 218 separates.Outer rim 230 may include material identical with pixel wall 218.Second fluid 232, such as including the stream of electrolyte
Body, is covered on the wet oil 228 of electricity and patterned electricity moistens above the pixel wall 218 of element grid.
Top support plate 234 covers second fluid 232, and second fluid 232 is maintained at electricity and moistened by edge seal 236
It wants above pixel array.Bottom support plate 224 and top support plate 234 may be the unitary part of the wet element of individual electricity, or
Bottom support plate 224 and top support plate 234 may be shared by the wet element of multiple electricity.Bottom support plate 224 and top braces
Plate 234 can for example be made of glass or polymer, and may be rigid or flexible.
The dielectric barriers for being applied to second fluid 232 and the wet elements of individual electricity stack (e.g., including electrode layer 222
With hydrophobic layer 226) on the wet elements of the controllable individual electricity of voltage V transmittances or reflectivity.
Electric moistening display apparatus 200 has viewing surface 238 and the back side 240, can observe on the viewing surface 238 wet by electricity
Moisten the image or display content that display device 200 is formed.Top support plate 234 is towards viewing surface 238, and bottom support plate 224
Towards the back side 240.In an alternate embodiment, can from the back side 240 electric moistening display apparatus 200.Electric moistening display apparatus
200 may be reflection-type, transmission-type or transflective.Electric moistening display apparatus 200 can be segmented display class
Type, image therein are made of multiple segments.The segment can switch simultaneously or switch respectively.Each segment includes that an electricity is wet
Moisten element 220 or including the wet elements 220 of several electricity possible adjacent to each other or away from each other.E.g., including in a segment
In electricity moisten element 220 switch simultaneously.For giving some instances, electric moistening display apparatus 200 is also possible to be active square
Battle array drive-type type of display or passive matrix drive formula display.
Second fluid 232 can not be mixed with first fluid 228.In general, can not hybrid representation second fluid 232 can not
It mixes or blends with first fluid 228.Second fluid 232 generally includes electrolyte, and is conductive or polar.Second
Fluid 232 may be, for example, water or salting liquid, such as solution of the potassium chloride in water and alcohol mixture.Second fluid 232 is excellent
Selection of land is transparent, but may be coloured, white, absorbability or reflexive.Generally known as electricity moistens oil
First fluid 228 is nonconducting, thereby increases and it is possible to be, for example, the alkane of similar hexadecane or (silicon) oil.Hydrophobic layer 226 is arranged in
In bottom support plate 224, to generate electric wetted surface region.Hydrophobic characteristics cause 228 Preferential adsorption of first fluid to bottom
Support plate 224, because first fluid 228 has higher relative to the surface of hydrophobic layer 226 relative to second fluid 232
Wettable.Wettable is related to fluid for the relative affinity of the surface of solids.Wettable increases with the increase of affinity, and
And the wettable can be measured by the contact angle formed between fluid and solid, and can be surveyed inside associated fluid
Amount.For example, this contact angle can from 90 ° under the conditions of opposite non-wettability, 0 ° under the conditions of complete wettable added above,
Fluid is intended to form film on the surface of solid in complete wettable situation.
Electrode layer 222 is separated by insulator with first fluid 228 and second fluid 232, and the insulator may be thin
Aqueous layer 226.First signal wire 242 supplies voltage signal V to electrode layer 222 (and therefore electrode 216), such as herein will be further
Description.The top electrodes (not shown) that the electrical connection of second signal line 244 is extremely contacted with conductive second fluid 232.The top
It may be shared for electrode element 220 wet for more than one electricity, because of the wet element 220 of electricity and second fluid 232
Fluid interconnection, and share the second fluid 232 not interrupted by pixel wall 218.The wet element 220 of electricity is by being applied to the first signal wire
Voltage V control between 242 and second signal line 244.
First fluid 228 absorbs at least part spectrum.A part of spectrum of 228 transmissive of first fluid, to form filter
Color chips.For this purpose, can for example be coloured by addition pigment particles or dyestuff to first fluid 228.Alternatively, first fluid
228 may be the (for example, the generally whole spectrum of absorption) or reflective of black.Hydrophobic layer 226 may be transparent or anti-
It penetrates.Reflective layer can reflect entire visible spectrum, so that the layer shows white or part for white, to make it have color
It is color.
When the voltage V being applied between signal wire 242 and 226 is set at non-zero active signal level, electricity is wet to be wanted
Element 220 will enter active.Electrostatic force will make second fluid 232 be moved towards electrode layer 222, thus by first fluid 228
Repel the pixel wall 218 to the region for surrounding hydrophobic layer 226 from the region of hydrophobic layer 226, forms point drop-wise.The effect from
The sur-face peeling first fluid 228 of the hydrophobic layer 226 of the wet element 220 of electricity.When the voltage in the wet element 220 of electricity returns to
The inactive signal level for being zero or close to zero value when, the wet element 220 of electricity will return to disabled state, inactive at this
First fluid 228 flows back under state, to cover hydrophobic layer 226.By this method, first fluid 228 is in the wet element of each electricity
Electrically controllable optical switch is formed in 220.
It can such as find out in Fig. 2 C of the enlarged view of pixel region 212, thin film transistor (TFT) 214 includes: gate electrode 246,
It is electrically connected to the correspondence scan line (in Fig. 2 C not shown) of scan line SL;Source electrode 248, electrical connection to data line DL
Respective data lines (for example, first signal wire 242 of Fig. 2 B);And drain electrode 250, electrical connection to pixel electrode 216.
Therefore, scan line SL and data line DL of the pixel region 212 based on Fig. 2A are operated.
It can such as find out in Fig. 2A and Fig. 2 C, pixel electrode 216 has relative to the generally U-shaped of respective pixel region 212
Shape.More generally, pixel electrode 216 has the opening tag shape relative to respective pixel region 212.In general, often
Advising pixel electrode has the shapes and sizes for corresponding to pixel region 212.Therefore, the opening tag of pixel region, general U-shape
It is also for normal pixels electrode, the normal pixels electrode usually corresponds to the substantially rectangular of the shape of pixel region
Shape.As noted earlier, pixel electrode 216 is generally defined in the electrode layer 222 of the electric moistening device 200 of Fig. 2 B).Such as
Can find out in fig. 2 c, the width L1 of the arm in U-shaped pixel electrode 216 generally the width W of electrode 216 0.02 to
Within the scope of 0.2 times, and the height L2 of the base portion of U-shaped pixel electrode 216 generally the width W of pixel electrode 216 0.02 to
Within the scope of 0.2 times.In addition, the arm of U-shaped pixel electrode 216 can have mutually different dimensions.Although Fig. 2 C is by pixel electrode
216 are illustrated as being " rigid " and having substantially straight line and approximate right angle, but the U-shape of pixel electrode 216 may be flat
Sliding, there is curved surface, and less rigid.
In Fig. 2A and Fig. 2 B in embodiment illustrated, the beginning of U-shaped pixel electrode 216 is close to pixel region 212
Top.If desired, the beginning of U-shaped pixel electrode 216 can be towards the bottom of pixel region 212 according to other embodiments.It changes
Sentence is talked about, and according to various embodiments, pixel electrode 216 can be inverted into inverted U-shaped shape.In such embodiments, corresponding
Thin film transistor (TFT) 214 will be moved along the somewhere of respective data lines DL and scan line SL.The inverted U-shaped shape of pixel electrode 216 can
Can be " rigid " and with substantially straight line and approximate right angle or pixel electrode 216 inverted U-shaped shape may be it is smooth,
It is rigid with curved surface, and less.In addition, the arm of inverted U-shaped shape can have mutually different dimensions.
According to various embodiments, if pixel region 212 closer to square shape, U-shaped pixel electrode 216
Beginning can aspect-oriented, i.e. pixel electrode can have approximately C-shaped shape or reversed C-shaped shape (that is, sideways U-shape).
If C-shaped shape or reversed C-shaped shape use in the pixel region 212 of rectangular shape, or even substantially square
It is used in the pixel region 212 of shape shape, then the collection that can need to improve for first fluid 228.Equally, corresponding film is brilliant
Body pipe 214 will be moved correspondingly along respective data lines DL and scan line SL.The ruler of C-shaped pixel electrode and reversed C-shaped pixel electrode
Very little and relationship and previously described U-shaped and inverted U-shaped pixel electrode are substantially similar.In addition, C-shaped shape and reversed C-shaped shape
Arm can have mutually different dimensions.The C-shaped shape of pixel electrode 216 and reversed C-shaped shape may be " rigid " and
May be with substantially the C-shaped shape of straight line and approximate right angle or pixel electrode 216 and reversed C-shaped shape it is smooth, have
Curved surface, and it is less rigid.
In operation, in response to the voltage for the pixel electrode 216 being applied in respective pixel region 212, respective pixel area
The correspondence hydrophobic layer 226 of the contact of second fluid 232 lower section in domain 212, to replace first in respective pixel region 212
Fluid 228.For Fig. 2 C, the voltage that first fluid 228 will be responsive to be applied to pixel is upper and lower in respective pixel region 212
It is mobile.By utilizing opening tag pixel electrode 216, the surface area of pixel electrode 216 reduces relative to normal pixels electrode.As before
Pointed by face, and it can such as find out in fig. 2 c, the width L1 of the arm in U-shaped pixel electrode 216 is generally in pixel electrode
In the range of 0.02 to 0.2 times of 216 width W, and the height L2 of the base portion of U-shaped pixel electrode 216 is generally in pixel electricity
In the range of 0.02 to 0.2 times of the width W of pole 216.In general, normal pixels electrode have close to pixel region
212 identical surface areas.Therefore, U-shaped pixel electrode 216 has reduced surface area relative to normal pixels electrode.Pixel electricity
The surface area of pole 216 reduces the capacitor for causing pixel region, i.e. CewReduce nearly 70%.More specifically, pixel electrode 216
Capacitor Cew may be the C using the normal pixels electrode of the size in pixel region 212 with such as 120 microns × 60 micronsew
About 0.3 times.Therefore, based on the equation 1 previously listed, reduced using the voltage drop in the pixel of U-shaped pixel electrode 216.
It lifts for this example, for being measured as about 120 microns × 60 microns of pixel region, and L1=L2=8 microns, due to second
The resistance R of electrolyte in bodyEGGVoltage drop can be about 3.23 volts, and be reduced to about 7.58 using the voltage of normal pixels electrode
Volt.In addition, also generating good white level in electric wet-type display 200 using U-shaped pixel electrode 216, and therefore utilize U
The electric wet-type display 200 of shape pixel electrode 216 has good brightness.The use of U-shaped electrode 216 is additionally aided to first-class
Body 228 carries out motion control, and therefore facilitates the reproducibility of the gray level in pixel array.With the picture for using conventional shape
Plain electrode is compared, and the use of U-shaped pixel electrode 216 allows the mobile good control of carry out to first fluid 228.
Although describing U-shaped pixel electrode 216 by reference to electric moistening device 200, it should be noted, however, that U-shaped pixel electricity
Pole 216 can be used together with other types of display device.
Fig. 3 diagram is aobvious according to the example images that can be used together with electric moistening display apparatus 200 of some implementations
Show the selected example components of equipment 300.Image display 300 can be realized as appointing in several different types of electronic devices
What is a kind of.Some examples of image display 300 can include: digital media device and E-book reader 300-1;Plate meter
Calculate device 300-2;Smart phone, mobile device and portable game system 300-3;On knee and net book computing device 300-
4;Wearable computing device 300-5;Augmented reality device, the helmet, goggles or glasses 300-6;And it can be wet aobvious with electricity
The connection of showing device 200 and including for controlling according to any of the processor of the display of techniques described herein and memory
Other devices.
In very basic configuration, image display 300 includes or access is with lower component: such as at least one is controlled
Logic circuit, central processing unit or processor 302 and one or more computer-readable mediums 304.Each processor 302
It itself may include one or more processors or process kernel.For example, processor 302 can be realized as one or more micro processs
Device, microcomputer, microcontroller, digital signal processor, central processing unit, state machine, logic circuit and/or based on can grasp
Make any device of instruction manipulation signal.In some cases, processor 302, which can be, is specifically programmed or configures to execute sheet
One or more hardware processors of algorithm and process described in text and/or the logic circuit of any suitable type.Processor
302 can be configured to obtain and execute the computer being stored in computer-readable medium 304 or other computer-readable mediums
Readable instruction.The executable timing controller 202 for belonging to electric moistening display apparatus 200 of processor 302, data driver 204 and/
Or one or more of function of scanner driver 206.Processor 302 can also carry out the figure for belonging to electric moistening display apparatus
The one or more functions of controller (not shown).
According to the configuration of image display 300, computer-readable medium 304 may be that tangible non-transitory computer is deposited
The example of storage media, and the volatile and non-volatile that any kind of technology that may include information for storage is realized
Memory and/or removable and irremovable medium, the information such as computer readable instructions, data structure, program module
Or other data etc..Computer-readable medium 304 may include but be not limited to RAM, ROM, EEPROM, flash memories or other meters
Calculation machine readable medium technology, CD-ROM, digital versatile disc (DVD) or other optical storages, cassette, tape, solid-state
Storage device and/or disk storage device.In addition, in some cases, image display 300 may have access to external storage dress
It sets, such as RAID storage system, storage array, network-attached storage device, storage area network, cloud storage device or can be used for depositing
Storage information and any other Jie that can be directly accessed by processor 302 or be accessed via another computing device or network
Matter.Therefore, computer-readable medium 304 may be that can store can be by instruction that processor 302 executes, module or component
Computer storage medium.
Computer-readable medium 304 can be used for storing and maintaining any amount of functionality that can be executed by processor 302
Component.In some implementations, these functional assemblies include the instruction or program that can be executed by processor 302, and are worked as
Described instruction or program are performed realization operation logic, to belong to image display 300 recited above for executing
Operation.The functional assembly that image display 300 is stored in computer-readable medium 304 may include operating system, be used for
The various functions and Subscriber Interface Module SIM 306 of control and management image display 300, in image display 300
Electric moistening display apparatus 200 on generate one or more user interfaces.
In addition to this, computer-readable medium 304 can also store data, data structure as used in functional assembly
Deng.For example, may include user information and optional one or more content items by the data that computer-readable medium 304 stores
308.According to the type of image display 300, computer-readable medium 304 also optionally includes such as other module sum numbers
According to 310 other functional assemblies and data, other functional assemblies and data may include program, driver etc. and by
Data used in functional assembly.In addition, image display 300 may include many other logics, program mode and physical set
Part, wherein described is only example related with the discussion of this paper.In addition, though attached drawing is by the function of image display 300
Energy property component and data are illustrated as being present on image display 300, and by the processor on image display 300
302 execute, it will thus be appreciated that these components and/or data can be distributed in different computing device and position in any way.
Fig. 3 also illustrate may include other components in image display 300 example.This example includes various types of
The sensor of type, various types of sensors may include GPS device 312, accelerometer 314, one or more cameras
316, compass 318, gyroscope 320, microphone 322 etc..
Image display 300 may also include one or more communication interfaces 324, the interface 324 can support it is wired and
Both be wirelessly connected for being connected to various networks, such as cellular network, radio, Wi-Fi network, near radio connection,
Near field connection, infrared signal, local area network, wide area network, internet etc..Communication interface 324 may also allow for user to access another dress
The storage device set accesses storage device by another device, and another device such as remote computing device, network is attached
Connect storage device, cloud storage device etc..
Image display 300 can also be equipped with one or more speakers 326 and various other input/output (I/O) group
Part 328.This I/O component 328 may include touch screen and various user's control parts (for example, button, control stick, keyboard, keypad
Deng), tactile or stereognosis output device, connectivity port, physical condition sensor etc..For example, the operation system of image display 300
System 306 may include suitable driver, and the driver is configured to from keypad, the keyboard for being included as I/O component 328
Or other user's control parts and device receive input.In addition, image display 400 may include various other groups (not shown)
Part, the example of the component include the power supplys such as mobile storage means, battery and power control unit, PC card component etc.
Deng.
Various instructions described herein, methods and techniques can be considered in the general context of computer executable instructions,
The program mould that the computer executable instructions are such as stored in computer storage medium and are executed by the processor of this paper
Block.In general, program module includes for routines performing specific tasks or implementing specific abstract data types, program, right
As, component, data structure etc..These program modules etc. can be used as native code execution, or can be such as in virtual machine or other
It downloads and executes in Just-In-Time performing environment.Usually, in various implementations, the functionality of program module visually needs
It is combined or is distributed.The implementation of these modules and technology is storable in computer storage medium or with certain communication
Form is transmitted.
Conclusion
Although theme is described with the language specific to structure feature and/or methodology behavior, should manage
It solves, the theme limited in the appended claims is not necessarily limited to above-mentioned specific features or behavior.On the contrary, specific features
It is published as realizing the illustrative form of claim with behavior.
Those skilled in the art will appreciate that for virtually limitless quantity described above version be it is possible,
And example and attached drawing are merely to illustrate one or more examples of implementation.
It will be understood by those skilled in the art that various other repair can be made in the case where not departing from claimed theme
Change, and available equivalents form is replaced.In addition, can be made in the case where not departing from central concept described herein
It is many to modify to adapt to the particular condition of the teaching of claimed theme.It is therefore desirable to which the theme of protection is not intended to be limited to
Disclosed specific embodiment, but the claimed theme may also include and fall into appended claims and its equivalent shape
All embodiments in the range of formula.
In being discussed in detail above, numerous details are elaborated to provide the thorough understanding to claimed theme.
However, it will be understood by those skilled in the art that claimed theme can be practiced in the case where not having these details.
In other cases, and it is not described in detail method, apparatus or system that those of ordinary skill in the art are known, so as not to fuzzy
Claimed theme.
This specification might mean that in conjunction with described in specific embodiment referring to for " embodiment "
A particular feature, structure, or characteristic may include at least one embodiment of claimed theme.Therefore, in this specification
The phrase " in one embodiment " or " embodiment " occurred at each position of full text is not necessarily intended to refer to phase
Same embodiment or any one described specific embodiment.In addition, it should be understood that described special characteristic, structure
Or characteristic can combine in various ways in one or more embodiments.Certainly, it is however generally that, these problems and other problems
It can be changed with specific using background.Therefore, the specification or the specific background using these terms can provide about in institute
State the useful guidance of the inference obtained under background.
Clause
1. a kind of electric moistening display apparatus including multiple pixel regions, wherein each pixel region includes:
Hydrophobic surface;
It include the fluid of electrolyte on the wet oil of electricity and the wet oil of the electricity on the hydrophobic surface;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has relative to the pixel region
General U-shape, wherein the U-shape is by the first arm with the first width, the second arm for being defined by the second width
Portion and the base portion by highly defining define, and wherein first width and second width in the pixel electrode
Within the scope of 0.02 to 0.2 times of width W, and the height is in 0.02 to 0.2 times of range of the width W of the pixel electrode
It is interior;And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
The hydrophobicity table is wherein applied to by the pixel electrode via the thin film transistor (TFT) and the voltage source
The voltage in face causes the hydrophobic surface to become more hydrophobic (hydrophobilic), to will include the electrolyte
The fluid is moved on the hydrophobic surface, thus the wet oil of the electricity generally on hydrophobic surface described in displacement.
2. the electric moistening display apparatus as described in clause 1, wherein each pixel region indicates one of the following: (i) institute
State the pixel of electric moistening display apparatus, or the subpixel area of (ii) described electric moistening device.
3. a kind of electric moistening display apparatus including multiple pixel regions, wherein each pixel region includes:
Hydrophobic surface;
First fluid and second fluid on the hydrophobic surface, wherein the first fluid and the second fluid are not
It can mix;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has opening tag shape;And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
Wherein the hydrophobic surface is applied to via pixel electrode described in the thin film transistor (TFT) and the voltage source
Voltage causes the hydrophobic surface to become more hydrophobic, so that the second fluid is moved on the hydrophobic surface,
Thus the first fluid generally on hydrophobic surface described in displacement.
4. the electric moistening display apparatus as described in clause 3, wherein the opening tag shape of the pixel electrode have with
One in lower: (i) general U-shape, (ii) substantially inverted U-shaped shape, (iii) approximately C-shaped shape, and (iv) is substantially reversely
C-shaped shape.
5. the electric moistening display apparatus as described in clause 3, wherein the opening tag shape of the pixel electrode is by having
First arm of the first width, the second arm defined by the second width and the base portion by highly defining define, and its
Described in the first width and second width within the scope of 0.02 to 0.2 times of the width W of the pixel electrode, and the height
Degree is within the scope of 0.02 to 0.2 times of the width W of the pixel electrode.
6. the electric moistening device as described in clause 3, wherein each pixel region indicates one of the following: (i) described electricity
The pixel of moistening display apparatus, or the sub-pixel of (ii) described electric moistening display apparatus.
7. the electric moistening device as described in clause 3, wherein the first fluid is the wet oil of electricity, and the second fluid is
Fluid including electrolyte.
8. a kind of image display including electric moistening display apparatus, the electric moistening display apparatus includes multiple pixels
Region, wherein each pixel region includes:
Hydrophobic surface;
First fluid and second fluid on the hydrophobic surface, wherein the first fluid and the second fluid are not
It can mix;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has opening tag shape;And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
The hydrophobicity table is wherein applied to by the pixel electrode via the thin film transistor (TFT) and the voltage source
The voltage in face causes the hydrophobic surface to become more hydrophobic, so that the second fluid is moved to the hydrophobic surface
On, thus the first fluid generally on hydrophobic surface described in displacement.
9. the image display as described in clause 8, wherein the opening tag shape of the pixel electrode is with following
In one: (i) general U-shape, (ii) substantially inverted U-shaped shape, (iii) approximately C-shaped shape, and (iv) substantially reversed C
Shape shape.
10. the image display as described in clause 11, wherein the opening tag shape of the pixel electrode is by having
First arm of the first width, the second arm defined by the second width and the base portion by highly defining define, and its
Described in the first width and second width within the scope of 0.02 to 0.2 times of the width W of the pixel electrode, and the height
Degree is within the scope of 0.02 to 0.2 times of the width W of the pixel electrode.
11. the image display as described in clause 8, wherein each pixel region indicates one of the following: (i) is described
The pixel of electric moistening display apparatus, or the sub-pixel of (ii) described electric moistening display apparatus.
12. the image display as described in clause 8, wherein described image shows that equipment includes one of the following: number
Word media apparatus, E-book reader, tablet computing device, smart phone, portable game system, laptop devices,
Net book computing device, clothing computer or augmented reality device.
13. the image display as described in clause 8, wherein the first fluid is that electricity moistens oil, and the second
Body is the fluid for including electrolyte.
Claims (13)
1. a kind of electric moistening display apparatus including multiple pixel regions, wherein each pixel region in the multiple pixel region
Domain includes:
Hydrophobic surface;
It include the fluid of electrolyte on the wet oil of electricity and the wet oil of the electricity on the hydrophobic surface;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has relative to the pixel region substantially
U-shape, wherein the U-shape by with the first width the first arm, the second arm for being defined by the second width and
It is defined by the base portion highly defined, and the wherein width of first width and second width in the pixel electrode
Within the scope of 0.02 to 0.2 times of W, and the height is within the scope of 0.02 to 0.2 times of the width W of the pixel electrode;
And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
The hydrophobic surface is wherein applied to by the pixel electrode via the thin film transistor (TFT) and the voltage source
Voltage causes the hydrophobic surface of the pixel electrode whereabouts to become more hydrophilic, to will include the electrolyte
The fluid be moved on the hydrophobic surface of the pixel electrode whereabouts, thus by the wet oil of the electricity from institute
The hydrophobic surface generally displacement of pixel electrode whereabouts is stated to the hydrophobic surface of not pixel electrode.
2. electric moistening display apparatus as described in claim 1, wherein each pixel region indicates one of the following: (i) institute
State the pixel of electric moistening display apparatus, or the subpixel area of (ii) described electric moistening display apparatus.
3. a kind of electric moistening display apparatus including multiple pixel regions, wherein each pixel region in the multiple pixel region
Domain includes:
Hydrophobic surface;
First fluid and second fluid on the hydrophobic surface, wherein the first fluid can not be mixed with the second fluid
It closes;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has opening tag shape;And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
The hydrophobic surface is wherein applied to by the pixel electrode via the thin film transistor (TFT) and the voltage source
Voltage causes the hydrophobic surface to become more hydrophilic, so that the second fluid is moved to the pixel electrode place
On the hydrophobic surface at place, thus by the first fluid from the hydrophobic surface of the pixel electrode whereabouts
The generally hydrophobic surface of the displacement to not pixel electrode.
4. electric moistening display apparatus as claimed in claim 3, wherein the opening tag shape of the pixel electrode have with
One in lower: (i) general U-shape, (ii) substantially inverted U-shaped shape, (iii) approximately C-shaped shape, and (iv) is substantially reversely
C-shaped shape.
5. electric moistening display apparatus as claimed in claim 3, wherein the opening tag shape of the pixel electrode is by having
First arm of the first width, the second arm defined by the second width and the base portion by highly defining define, and its
Described in the first width and second width within the scope of 0.02 to 0.2 times of the width W of the pixel electrode, and the height
Degree is within the scope of 0.02 to 0.2 times of the width W of the pixel electrode.
6. electric moistening display apparatus as claimed in claim 3, wherein each pixel region indicates one of the following: (i) institute
State the pixel of electric moistening display apparatus, or the sub-pixel of (ii) described electric moistening display apparatus.
7. electric moistening display apparatus as claimed in claim 3, wherein the first fluid is that electricity moistens oil, and the second
Body is the fluid for including electrolyte.
8. a kind of image display including electric moistening display apparatus, the electric moistening display apparatus includes multiple pixel regions
Domain, wherein each pixel region in the multiple pixel region includes:
Hydrophobic surface;
First fluid and second fluid on the hydrophobic surface, wherein the first fluid can not be mixed with the second fluid
It closes;
Pixel electrode below the hydrophobic surface, wherein the pixel electrode has opening tag shape;And
It is coupled to the thin film transistor (TFT) of the pixel electrode and voltage source,
The hydrophobic surface is wherein applied to by the pixel electrode via the thin film transistor (TFT) and the voltage source
Voltage causes the hydrophobic surface to become more hydrophilic, so that the second fluid is moved to the pixel electrode place
On the hydrophobic surface at place, thus by the first fluid from the hydrophobic surface of the pixel electrode whereabouts
The generally hydrophobic surface of the displacement to not pixel electrode.
9. image display as claimed in claim 8, wherein the opening tag shape of the pixel electrode is with following
In one: (i) general U-shape, (ii) substantially inverted U-shaped shape, (iii) approximately C-shaped shape, and (iv) substantially reversed C
Shape shape.
10. image display as claimed in claim 8, wherein the opening tag shape of the pixel electrode is by having the
First arm of one width, the second arm defined by the second width and the base portion by highly defining define, and wherein
First width and second width are within the scope of 0.02 to 0.2 times of the width W of the pixel electrode, and the height
Within the scope of 0.02 to 0.2 times of the width W of the pixel electrode.
11. image display as claimed in claim 8, wherein each pixel region indicates one of the following: (i) is described
The pixel of electric moistening display apparatus, or the sub-pixel of (ii) described electric moistening display apparatus.
12. image display as claimed in claim 8, wherein described image shows that equipment includes one of the following: number
Word media apparatus, E-book reader, tablet computing device, smart phone, portable game system, laptop devices,
Net book computing device, clothing computer or augmented reality device.
13. image display as claimed in claim 8, wherein the first fluid is that electricity moistens oil, and the second
Body is the fluid for including electrolyte.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US14/224,989 | 2014-03-25 | ||
US14/224,989 US9568727B2 (en) | 2014-03-25 | 2014-03-25 | Electrowetting display pixel architecture |
PCT/US2015/022049 WO2015148394A1 (en) | 2014-03-25 | 2015-03-23 | Electrowetting display pixel architecture |
Publications (2)
Publication Number | Publication Date |
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CN106104359A CN106104359A (en) | 2016-11-09 |
CN106104359B true CN106104359B (en) | 2019-08-16 |
Family
ID=54190081
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Application Number | Title | Priority Date | Filing Date |
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CN201580015555.6A Expired - Fee Related CN106104359B (en) | 2014-03-25 | 2015-03-23 | Electric wet-type display pixel structure |
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US (1) | US9568727B2 (en) |
EP (1) | EP3123231B1 (en) |
JP (1) | JP6367964B2 (en) |
CN (1) | CN106104359B (en) |
WO (1) | WO2015148394A1 (en) |
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US11607704B2 (en) | 2017-04-20 | 2023-03-21 | Texas Instruments Incorporated | Methods and apparatus for electrostatic control of expelled material for lens cleaners |
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2014
- 2014-03-25 US US14/224,989 patent/US9568727B2/en not_active Expired - Fee Related
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2015
- 2015-03-23 CN CN201580015555.6A patent/CN106104359B/en not_active Expired - Fee Related
- 2015-03-23 JP JP2016558676A patent/JP6367964B2/en not_active Expired - Fee Related
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- 2015-03-23 EP EP15767723.8A patent/EP3123231B1/en active Active
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JP6367964B2 (en) | 2018-08-01 |
US20150277100A1 (en) | 2015-10-01 |
CN106104359A (en) | 2016-11-09 |
WO2015148394A1 (en) | 2015-10-01 |
EP3123231A4 (en) | 2017-09-27 |
EP3123231A1 (en) | 2017-02-01 |
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